function str_replace(e,d,a,f){var b=0,c=0,g="",h="",i=0,j=0;e=[].concat(e);d=[].concat(d);a=a;var k=d instanceof Array,l=a instanceof Array;a=[].concat(a);if(f)this.window[f]=0;b=0;for(i=a.length;b<i;b++)if(a[b]!==""){c=0;for(j=e.length;c<j;c++){g=a[b]+"";h=k?d[c]!==undefined?d[c]:"":d[0];a[b]=g.split(e[c]).join(h);if(f&&a[b]!==g)this.window[f]+=(g.length-a[b].length)/e[c].length}}return l?a:a[0]};
function strtolower(a){return(a+"").toLowerCase()};
function strstr(a,c,d){var b=0;a+="";b=a.indexOf(c);return b==-1?false:d?a.substr(0,b):a.slice(b)};